JED 1.6.0+ - Spawn search customization (for Erebus here)

{
    "config_version": {
        "id": "__default",
        "version": 0
    },
    "dimensions": [
        {
            "dim": 66,
            "worldinfo_onetime": {
                "GameRules": {
                    "spawnRadius": "0"
                }
            },
            "jed": {
                "SpawnPointSearchType": {
                    "type": "cavern",
                    "min_y": 40,
                    "max_y": 100
                }
            }
        }
    ]
}